publish(string topic_name, message_base msg, WaypointsType waypoints = null, bool send_as_delta = false, byte[] stream_id = null, long message_sequence_number = 0, ulong micros_since_epoch = 0)
{
unchecked {
MemoryStream stream = new MemoryStream();
var proto = new TCompactProtocol(new TStreamTransport(stream, stream));
proto.WriteByte(1);
uint flags = 0;
if (waypoints != null)
{
flags |= (uint)message_envelope <WaypointsType> .flags_enum.has_waypoints;
}
if (send_as_delta == true)
{
flags |= (uint)message_envelope <WaypointsType> .flags_enum.is_delta;
}
if (stream_id != null)
{
flags |= (uint)message_envelope <WaypointsType> .flags_enum.has_stream_id;
}
proto.WriteI32((int)flags);
proto.WriteString(msg.GetType().Name);
if (stream_id != null)
{
proto.WriteBinary(stream_id);
}
if (waypoints != null)
{
waypoints.Write(proto);
}
msg.Write(proto, !send_as_delta);
Publishing_channel channel;
string topic_name_;
lock (publishing_channels) {
if (!publishing_channels.TryGetValue(topic_name, out channel))
{
channel = new Publishing_channel(conn, Publishing_channel_idle_timeout, topic_name, publishing_channels, publishing_exception);
publishing_channels[topic_name] = channel;
topic_name_ = topic_name;
}
else
{
topic_name_ = "";
}
// publishing_channel.QueueDeclare(topic_name, false, false, false, null);
// not too fast at the moment (bare bones example), TODO later will set topic_name elsewhere so as not to resend it everytime
// explicit since epoch in microseconds time for the server's requirements
// TODO -- perhaps drop seq. number altogether or provide individually-parsable (at the server end) possibility of supplying either one, or both (currently it is both or none thereby wasting at times 8 bytes)...
IBasicProperties props_;
if (micros_since_epoch != 0 || message_sequence_number != 0)
{
var dictionary = new Dictionary <string, object>();
dictionary.Add("XXXXXX", (long)message_sequence_number);
if (props == null)
{
props = channel.AMQP_channel.CreateBasicProperties();
}
props.ContentType = "X";
props.Headers = dictionary;
props.Timestamp = new AmqpTimestamp((long)micros_since_epoch);
props_ = props;
}
else
{
props_ = null;
}
channel.Published_flag = true;
channel.AMQP_channel.BasicPublish("", topic_name_, props_, stream.ToArray());
}
return(stream.Length);
}
}